156720590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{19763}}^1$

素因数の和:19844

約数の個数: 32

約数和(自身を含む): 308792736

約数和(自身を除く): 152072146

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 19763, 39526, 98815, 197630, 256919, 513838, 1205543, 1284595, 2411086, 2569190, 6027715, 12055430, 15672059, 31344118, 78360295, 156720590]

約数ペア:

[(1, 156720590), (2, 78360295), (5, 31344118), (10, 15672059), (13, 12055430), (26, 6027715), (61, 2569190), (65, 2411086), (122, 1284595), (130, 1205543), (305, 513838), (610, 256919), (793, 197630), (1586, 98815), (3965, 39526), (7930, 19763)]